1. Preheat broiler. In a medium bowl, combine shrimp with oil, salt, and pepper. Toss to coat. Place in a single layer on broiler pan coated with cooking spray. Broil, about 6 inches from heat source, for 2 to 3 minutes, or until shrimp are pink. Remove pan from broiler, turn shrimp, return to broiler, and cook until done, about 2 more minutes.

2. Once shrimp are cooked, remove from heat. While shrimp are cooling, combine pesto sauce and mayonnaise in a small bowl. 3. When shrimp are cool, thread onto skewers with cherry tomatoes and basil leaves or green pepper. Serve with pesto dipping sauce.